A K-complex is which of the following?

a. A c. C
b. B d. D

ANS: A
K-complexes are large, vertical, slow waves that have an amplitude of at least 75 ?V, with an ini-tial negative deflection.

Health Professions

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Which statement about Class III standpipe systems is MOST accurate?

A. Class III standpipe systems are also referred to as house lines. B. Class III standpipe systems provide two 2 inch (65 mm) hose connections on a single riser. C. Class III standpipe systems are designed to take the place of automatic sprinkler systems. D. Class III standpipe systems must allow both Class I and Class II services to be used simultaneously.

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An AEMT is assessing a nine-month-old infant who is "not acting right" per his mother. Assessment reveals him to be extremely irritable, crying weakly, and shows he does not want to be touched by the EMT. Which one of the following BEST describes this infant's mental status?

A) Verbal B) Alert C) Crying D) Lethargic

Health Professions